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How Human-Caused Climate Change Affects Global Food Security

By Joanne Lu

After decades of progress, the United Nations recently reported that global hunger and acute food insecurity are on the rise for the third year in a row. Hunger levels have returned to similar levels as 10 years ago. In addition to persistent conflict and economic downturns, the UN cited the effects of climate change as a leading driver of food insecurity.

Food security, according to the World Food Programme, is when people have “availability and adequate access at all times to sufficient, safe, nutritious food to maintain a healthy and active life.” Rising temperatures, changes in rainfall patterns and an increase in the frequency and severity of disasters is threatening food supply and access, especially for the world’s most vulnerable – many of whom rely on agriculture for their livelihoods. The UN report says that since the early 1990s, extreme climate events, including heat waves, droughts, floods and storms, have doubled, averaging 213 such events every year from 1990 to 2016. Read More

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